how to replace a multiport valve diverter assembly

Poolside Chat Episode #23: Broken Multiport Diverter

This is Poolside Chat where every week we answer your questions on how to fix and maintain your swimming pool. Poolside Chat is presented by INYOPools.com, helping pool owners find the right parts since 2001. In today’s episode of Poolside Chat, Rob and Matt tackle another common swimming pool question:
  • Should I replace my multiport valve diverter or the whole key seal assembly?

Now here’s your hosts – Matt and Rob.

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When to Backwash a Pool Filter

When to Backwash a Pool Filter

When should I backwash my pool filter? Without a doubt, this question has to be one of our top five most frequently asked questions. Knowing when to clean your sand or diatomaceous earth (DE) filter is vital in keeping your pool water and equipment healthy. Identifying when to backwash your filter is simple, but there are different methods to go about it. In today’s blog we will discuss three common ways of determining when to backwash your pool filter:
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V-Thread, Buttress, and Clamp Style Valve

What Is a V-Thread, Buttress, or Clamp Valve?

Without checking, what thread type is on your sand filter valve? Not a clue? Do not worry, you are not the only one.

The connecting joint of a multiport valve is an afterthought to most pool owners; likely there are more pressing matters, water chemistry, air leaks and the like. The only time we notice the thread type is the third time we try screwing on a new replacement valve. That is exactly when we see that the thread on the tank is a buttress but valve is a V-thread. That is $80 for the valve down the drain. not literally of course, because the drain is not working as a result of your filter is being out of commission. And that is where we come in.

The trickiest part is that only some filter tanks can use all three of these forms.  It depends on certain factors i.e. model, year, or specific type. For example the Pentair Tagelus uses all three. (more…)

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What is a spider gasket?

What Is a Spider Gasket?

Besides having the coolest name in the world of gaskets, this spoked piece of rubber helps our water move where we want, when we want it. The spider gasket is the main diverter seal within your pool’s multiport valve. For homeowners with diatomaceous earth (D.E.) or sand filters, we know the multiport valve as “that thing with the handle”. When we turn the handle on the valve we select Filter, Backwash, or Rinse, and the spider valve is the part making sure water does not lose its way to your desired destination.   (more…)

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